Bi-metal pump gear
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United States of America Patent
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Dec 24, 2013
Grant Date -
Oct 18, 2012
app pub date -
Apr 15, 2011
filing date -
Apr 15, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A pump gear is provided. The pump gear includes a first shaft portion having a first end and a second end with an integral gear portion formed therebetween. The first shaft portion is made from a first tool steel material. A second shaft portion having a third end brazed to the first end. The second shaft portion has at least one integral drive spline formed adjacent one end. The second shaft portion is made from a second tool material. The first tool steel material has a vanadium content by weight of greater than 9% and the second tool steel material has a vanadium content by weight of less than or equal to 1%.
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